Which Two Organ Systems are Involved in Directly Regulating Blood

Question

Which two organ systems are involved in directly regulating blood pH?
A)Lymphatic and digestive
B)Urinary and respiratory
C)Skeletal and cardiovascular
D)Urinary and digestive

Accepted Answer

The urinary system regulates blood pH by excreting hydrogen ions and reabsorbing bicarbonate, while the respiratory system regulates blood pH by controlling the levels of carbon dioxide through breathing.